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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<body>
<?
$conn = mysql_connect("localhost","root","123456");
mysql_select_db("mysql");
$sql = "select * from host";
mysql_query($sql);
mysql_close($conn);
?>
</body>
</html>
错误信息为：Fatal error: Call to undefined function: mysql_connect() in e:\php\index.php on line 10
请问这是怎么回事？
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<body>
<?
$conn = mysql_connect("localhost","root","123456");
mysql_select_db("mysql");
$sql = "select * from host";
mysql_query($sql);
mysql_close($conn);
?>
</body>
</html>
错误信息为：Fatal error: Call to undefined function: mysql_connect() in e:\php\index.php on line 10
请问这是怎么回事？
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